Figure 5From: Hot Extrusion Processing of Al–Li Alloy Profiles and Related Issues: A ReviewSchematic diagram of microstructure evolution in homogenization process (Modification and redrawing based on the figure in Ref. [38]): a As-cast microstructure, b Low melting eutectic phase dissolve completely and AlCu phase dissolve partly, c AlCu phase further dissolve and a new phase containing Sc form, d Refractory phase and the new AlCuSc phase remain after homogenizationBack to article page